Motorola 2 pin Soft rubber D-ring Earpiece Earphone Headset PTT(Push To Talk) with built-in line mic microphone for Motorola Radio Security Door Supervisor 2pin.Design by Big Speaker Unit, Clip this hands free earpiece onto your shirt and begin using your motorola radio device to communicate discretely and easily, whether you're in security, retail, or hospitality. Built-in line microphone and push-to-talk button. The earbud fits snugly in the ear with easy and keeps your conversations private.Excellent for use in police, , nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. Compatible with motorola two way radios e that required 2 pin plug. Including CLS Series, XTN Series, P100 Series, CP Series, DTR Series, P Series, PRO Series, XTN XU Series, XTN AX Series, Spirit Series, Spirit MU Series, Spirit MV Series, GP Series, SP Series, CT Series, RDX Series and Other Series: ECP100, EP450, AP10, AP50, AP73,PMR446, MagOne BPR40, AU1200, AV1200. For use with the following 2 way radios and many more that require a dual pin plug approximately 5/16 inch (standard 2 prong Motorola) CLS Series: CLS446, CLS1110, CLS1410, CLS1413, CLS1450, CLS1450C, CLS1450CB, CLS1453CH .XTN Series: XTN446, XTN500, XTN600 .XTNi Series: XTNi, XTNiD .P100 Series: P140, P145, P160, P165, P180, P185 .CP Series: CP88, CP040, CP100, CP110, CP125, CP140, CP150, CP160, CP180, CP200, CP250, CP300 Motorola Radio D Shape 2Pin PTT Headset Earpiece For use with the following 2 way radios and many more that require a dual pin plug approximately 5/16 inch (standard 2 prong Motorola) DTR Series: DTR2430, DRT2450, DTR410, DTR450, DTR510, DTR550, DTR610, DTR650 P Series: P10, P50, P50+, P040, P080, P100, P110, P200, P1225, P1225LS, PR400 PRO Series: PRO1150, PRO2150, PRO3150 XTN XV Series: XV1100, XV1400, XV2100, XV2600, XV4100 XTN XU Series: XU1100, XU2100, XU2600, XU4100 XTN AX Series: AXV5